Properties of the Number 1636

One Thousand Six Hundred Thirty-Six

Basics

Value: 1635 → 1636 → 1637

Parity: even

Prime: No

Previous Prime: 1627

Next Prime: 1637

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 409

Divisors: 1, 2, 4, 409, 818, 1636

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11001100100

Octal: 3144

Duodecimal: B44

Hexadecimal: 664

Square: 2676496

Square Root: 40.44749683231337

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Coordination sequence for 3D uniform tiling formed by stacking parallel layers of the 3.12.12 2D tiling (cf. A250122). A299257

a(0)=1, a(n) = 3·a(n-1) + n + 1. A340

In base-10 notation replace digits of n with their squared values (Version 1). A48385

Dispersion of A047209, (numbers >1 and congruent to 1 or 4 mod 5), by antidiagonals. A191728

Numbers where 6 outnumbers any other digit. A292456

T(n,k) = n·T(n,k-1) + k, with T(n,1) = 1, square array read by ascending antidiagonals (n >= 0, k >= 1). A126885

Triangle of the normalized A142963 and A156919 sequences. A156920

G.f. satisfies: A(x) = (1 + x·A(x))*(1 + x³*A(x)²). A192415

T(n,k) is the number of strictly increasing arrangements of n numbers in -(n+k-2)..(n+k-2) with sum zero. A188181

Trajectory of 40 under the map n-> A006369(n). A217729